JPH08113338A - Carrying device - Google Patents

Abstract

PURPOSE: To provide the carrying device capable of carrying a work piece at a small space. CONSTITUTION: Moving mechanisms 4, for moving a transfer part 10 in a carrying direction, are arranged on a base 1 and a moving part 10 directly above the base 1. Rotatable driven pinions 11 and 21, wherein rotating shafts are arranged in a direction orthogonal to a carrying direction, are retained on the and a moving parts 10 and 20 between the base 1 and a moving part 30 on the uppermost stage. Racks 2, 24, 14, and 34 engaging with driven pinions 11 and 21 to extend in parallel to the carrying direction so as to be faced each other respectively, are arrangedly fixed to the base 1 on the directly lower and upper sides of the moving parts 10 and 20 retaining the driven pinions 11 and 21 or the moving parts 10, 20, and 30. In this carrying device M, the respective moving parts 10, 20, and 30 on the base 1 are moved steplikely in the carrying direction by the performance of the movement mechanisms 4 to carry work W by the moving part 30 on the uppermost stage.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer device capable of transferring a work in a small space.

[0002]

2. Description of the Related Art Conventionally, when a work is carried, it is carried by using an endless traction member such as a belt conveyor or a reciprocating cylinder such as an air cylinder. Alternatively, there is a case where the rotating arm is used to carry the sheet.

However, when a belt conveyor or the like is used, it is necessary to dispose the belt conveyor or the like from the starting point for carrying the work to the ending point, and a large space is required.

Further, in an air cylinder or the like, it is necessary to move the piston rod by the conveying distance, and in order to secure the stroke of the piston rod, a cylinder or piston rod longer than the conveying distance is used. , This also requires a large space.

Further, when the rotating arm is used, a space for turning the arm is required at a position other than the transfer path for transferring the work, and a large space is required.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a transfer device capable of transferring a work in a small space.

[0007]

In the carrying apparatus according to the present invention, two or more moving parts are arranged above the base, and each moving part on the base moves stepwise in the carrying direction. Is a transfer device in which the uppermost moving part transfers a work, and a moving mechanism for moving the moving part in the carrying direction is provided in the base and the moving part directly above the base. A movable driven pinion having a rotation shaft arranged in a direction orthogonal to the transport direction is held at a moving portion between the base and the uppermost moving portion, and the movable pinion is moved while being held. Racks that engage with the driven pinions and extend parallel to the conveying direction so as to face each other are arranged and fixed to the bases or the moving portions just below and above the portions, respectively.

[0008]

In the carrying device according to the present invention, when the moving mechanism is actuated and the moving part immediately above the base (which is referred to as the first moving part) moves in the carrying direction, the moving part moves to the first moving part. Since the retained driven pinion is meshed with the rack that is fixed to the base in parallel with the transport direction,
Rotate in a predetermined direction.

Then, the moving part immediately above the first moving part (this is referred to as the second moving part) is arranged parallel to the carrying direction so as to face the rack fixed to the base, and is moved first. Since the rack that meshes with the driven pinion of the unit is fixed, the rack moves further in the transport direction than the first moving unit, as in the so-called double-acting gear mechanism.

When the second moving section moves in the carrying direction, the driven pinion held by the second moving section moves to the first
The rack rotates in a predetermined direction because it meshes with a rack that is fixed to the moving unit in parallel with the transport direction.

Therefore, the moving part immediately above the second moving part (this is referred to as the third moving part) is arranged parallel to the carrying direction so as to face the rack fixed and fixed to the first moving part. Since the rack that meshes with the driven pinion of the second moving unit is fixed, the rack moves further in the transport direction than the second moving unit, as in the so-called double-acting gear mechanism.

Then, the moving parts (second, third, fourth, ...) Above the first moving part are sequentially moved by the so-called double-acting gear mechanism in the carrying direction from the moving part directly below. The uppermost moving unit conveys the work from the conveyance start point to the conveyance end point.

As described above, in the carrying apparatus according to the present invention, the moving parts above the base move in the carrying direction from the base or the moving part directly below to extend in a stepwise manner, and move to the uppermost stage. Since the section conveys the work, no space other than the conveyance path is required.

Further, since each moving unit moves in the carrying direction from the lower base or the moving unit, if the number of stages of the moving units is increased, the moving unit at the uppermost stage is longer than the length of each moving unit in the carrying direction. It is also possible to move the moving parts, and although the thickness of each moving part is increased, the carrying distance can be increased infinitely.

Furthermore, by stacking the moving parts during non-conveying, it is possible to wait in the space of the projected area of one moving part (or base).

Therefore, in the carrying device according to the present invention,
Work can be transported in a small space.

[0017]

An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 to 4, the carrying device M of the embodiment carries a work W such as a thin glass substrate used for a liquid crystal panel in a horizontal direction from a cut portion to a storage cassette. Above the base 1, there are three stages of moving parts 10
・ 20 and 30 are arranged.

A rack 2 extending parallel to the carrying direction is disposed and fixed to the base 1, and a moving part 10 (which is referred to as a first moving part 10) immediately above the base 1 is moved in the carrying direction. The drive motor 5 of the moving mechanism 4 is fixed.

In the case of the embodiment, the moving mechanism 4 is fixed so as to extend parallel to the transport direction with respect to the drive motor 5, the pinion 6 fixed to the drive shaft 5a of the drive motor 5, and the first moving portion 10. And a rack 7 that meshes with the pinion 6.

An intermediate moving section between the base 1 and the uppermost moving section 30 (this is referred to as a third moving section 30), that is,
A first moving unit 10 directly above the base 1, a moving unit 20 immediately above the first moving unit 10 (this is referred to as a second moving unit 20),
The rotating shafts 12 are respectively arranged in a direction orthogonal to the transport direction.
.Turning driven pinion 11 and 21 with 22 arranged
Is held.

Each pinion 11/21 has a moving part 10/2.
The rotating shafts 12 and 22 are inserted into the bearings 13 and 23 fixed to 0, and the tooth portions 11a, 11b, 21a and 21 are attached to the upper and lower ends.
b is arranged.

Then, these driven pinions 11 and 21
1 just below and above the moving parts 10 and 20 holding the
Alternatively, racks 2, 14, 24, 34, which engage with the driven pinions 11 and 21 and extend parallel to the transport direction, are provided in the moving units 10, 20, and 30 so as to face each other.
Arranged and fixed.

That is, the base 1 immediately below the first moving unit 10 holding the driven pinion 11 and the second moving unit 20 immediately above.
And the racks 2 and 24 that mesh with the driven pinion 11 so as to face each other and extend parallel to the transport direction.
Are fixedly arranged.

Further, the first moving portion 10 directly below the second moving portion 20 holding the driven pinion 21 and the third moving portion 3 immediately above.
0 means racks 14 that mesh with the driven pinions 21 so as to face each other and extend parallel to the transport direction.
34 is disposed and fixed.

Further, the transfer device M includes the first, second,
3 To prevent the moving parts 10, 20, 30 from shifting from the transport direction, slide them on the left and right parts of the base 1, the first, second moving parts 10, 20, respectively, on the left and right side surfaces of the moving parts 10, 20, 30, respectively. A moving guide member 8 is provided.

Each of the moving parts 10, 20 and 30 has a hole (not shown) formed on the peripheral wall thereof so as not to interfere with the rack 2 and the pinions 6.11.

The mode of use of the carrier M will be described. First, as shown in FIG.
The work W is placed on the upper surface of the uppermost third moving unit 30 in a standby state in which 30 is stacked above the base 1.

Then, the drive motor 5 as the moving mechanism 4
If you rotate it clockwise when viewed from above,
As shown in FIG. 4, the pinion 6 rotates, and the first moving unit 10 that fixes the rack 7 that meshes with the pinion 6 moves in the transport direction.

With the movement of the first moving section 10, the first
The driven pinion 11 held by the moving unit 10 is the base 1
To the rack 2 which is arranged and fixed in parallel with the transport direction,
Since the teeth 11a are meshed with each other, the teeth 11a rotate counterclockwise.

Then, the second moving portion 20 immediately above the first moving portion 10 is arranged in parallel with the conveying direction so as to face the rack 2 arranged and fixed on the base 1 and is driven by the driven pinion 11.
Since the rack 24 that meshes with the tooth portion 11b of the first fixing portion is fixed, the rack 24 moves further in the transport direction than the first moving portion 10 as in the so-called double-acting gear mechanism.

When the second moving section 20 moves in the carrying direction, the driven pinion 2 held by the second moving section 20.
1 rotates in the counterclockwise direction because the tooth portion 21a of the rack 1 is meshed with the rack 14 which is fixed to the first moving portion 10 in parallel with the transport direction.

Therefore, the third moving section 30 immediately above the second moving section 20 has the rack 1 fixed to the first moving section 10.
Since the rack 34, which is arranged parallel to the transport direction so as to face 4 and meshes with the tooth portion 21b of the driven pinion 21, is fixed, as in the case of the so-called double-acting gear mechanism, Further, it moves in the carrying direction, and the work W placed on the upper surface is carried to the carrying end point.

When the transport device M is returned,
When the drive motor 5 is rotated in the reverse direction, the moving parts 10, 20 and 30 are moved to the opposite side to the conveying direction and returned to above the base 1.

Therefore, in the carrying device M of the embodiment, the moving parts 10, 20, 30 above the base 1 move in the carrying direction from the base 1 / moving parts 10, 20 immediately below and extend in a stepwise manner. Then, the moving part 30 at the top is the work W.
No space other than the transportation path is required since the paper is transported.

Further, at the time of non-conveyance, the moving parts 10, 20, ...
If 30 is stacked, as shown in FIG. 1, it is possible to wait in a space of the projected area of one moving part 10 (or base 1), and the work W can be transported in a small space.

In the embodiment, the moving parts 10, 20 and 3 are
Although the case where 0 is set in three stages is shown, the fourth moving unit is provided immediately above the 33 moving unit 10 to rotatably hold the driven pinion of the third moving unit 30, and the second moving unit 20 and the second moving unit 20. Four
If the moving portion is provided with a rack that meshes with the pinion arranged in the third moving portion 30 and faces each other, the work can be conveyed longer than in the case of the embodiment, and further, the predetermined driven member is driven. If a pinion or a rack is provided and the number of stages of the moving parts is increased, the transport distance can be increased infinitely, although the thickness of the stacked moving parts is increased.

Further, in the embodiment, as the moving mechanism 4 for moving the first moving portion 10, the drive motor 5, the pinion 6 ,.
Although the rack 7 is used, an air cylinder may be fixed to the base 1 and a reciprocating cylinder or the like may be used so that the tip of the piston rod is connected to the first moving portion 10. good.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a sectional view of the same embodiment.

FIG. 3 is a perspective view showing a mode of use of the embodiment.

FIG. 4 is a plan view showing a mode of use of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Base, 2 * 14 * 24 * 34 ... Rack, 4 ... Moving mechanism, 5 ... Drive motor, 6 ... Pinion, 7 ... Rack, 10 * 20 * 30 ... Moving part, 11.21 ... Followed pinion, M ... Conveyor, W ... Work.

Claims (1)

[Claims] 1. A moving part having two or more steps is arranged above the base, and each moving part on the base moves stepwise in the carrying direction so that the uppermost moving part carries the work. In the transfer device, a moving mechanism that moves the moving unit in the transfer direction is provided in the base and the moving unit immediately above the base, and the moving unit moves between the base and the uppermost moving unit. In the moving part between,
A rotatable driven pinion having a rotating shaft arranged in a direction orthogonal to the transport direction is held, and the base or the moving portion immediately below and directly above the moving portion holding the driven pinion face each other. As described above, the rack is arranged and fixed to a rack that meshes with the driven pinion and extends parallel to the transport direction.